#Bim_wrap{width:100%;min-width:500px;}
#Bim_wrap_box{width: 100%;background:rgb(242,242,243);}
#Bim_wrap_box ul>li{height: 655px;width:100%;overflow: hidden;}
#Bim_wrap_box ul>li:nth-child(1){height:590px;width: 100%;}


#Bim_wrap_box ul>li:nth-child(1){background:url(../img/bim/building1-half-t.png) no-repeat;
background-position:75% 30px;}
#Bim_wrap_box ul>li:nth-child(2){ background: url(../img/bim/building1-half-b.png) no-repeat;background-position:71% 0px;background-color:white;}
#Bim_wrap_box ul>li:nth-child(3){background: url(../img/bim/building2-half-t.png) no-repeat;background-position: 20% 0;}
#Bim_wrap_box ul>li:nth-child(4){background: url(../img/bim/building3-half-t.png)  no-repeat,url(../img/bim/building2-half-b.png) no-repeat;background-color:white;background-position:78% 0,26.5% 0;}
#Bim_wrap_box ul>li:nth-child(5){background: url(../img/bim/building3-half-b.png)  no-repeat;background-position:72% 0;}

.Bim_content{margin:120px 0 100px 20%;}
.Bim_content>h2{font-size:28px;line-height: 60px;color: #ccc;font-weight: 300;}
.Bim_content>h2 em{display:inline-block;width:28px;height:28px;border: 1px solid #ccc;border-radius: 8px;text-align: center;line-height: 28px;font-style: normal;margin-right: 10px;}
.Bim_content>p{font-size: 16px;line-height: 28px;max-width:40%;width:400px;}
.Bim_content_img{width:360px;height:230px;margin-top:50px;}
.Bim_content_img>img{float:left;width:120px;height:100%;}
.content_img2{width:596px;height:160px;}
.content_img2>img{width: 278px;height: 160px;margin-right: 20px;}
.content_img3{width:640px;height:160px;}
.content_img3>img{width:300px;height: 160px;margin-right: 20px;}
.content_img4{width:278px;height:290px;}
.content_img4>img{width: 278px;height: 130px;margin: 5px 0;}

.Bim_content3{margin-left:650px;}
.Bim_content4{margin-left:350px;}












